FR2427234A1 - Unite de freinage assiste pour vehicules automobiles - Google Patents

Unite de freinage assiste pour vehicules automobiles

Info

Publication number
FR2427234A1
FR2427234A1 FR7913562A FR7913562A FR2427234A1 FR 2427234 A1 FR2427234 A1 FR 2427234A1 FR 7913562 A FR7913562 A FR 7913562A FR 7913562 A FR7913562 A FR 7913562A FR 2427234 A1 FR2427234 A1 FR 2427234A1
Authority
FR
France
Prior art keywords
piston
motor vehicles
assisted braking
braking unit
amplifying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7913562A
Other languages
English (en)
Other versions
FR2427234B1 (fr
Inventor
Helmut Steffes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Teves AG and Co oHG
Original Assignee
Alfred Teves GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alfred Teves GmbH filed Critical Alfred Teves GmbH
Publication of FR2427234A1 publication Critical patent/FR2427234A1/fr
Application granted granted Critical
Publication of FR2427234B1 publication Critical patent/FR2427234B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/14—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
    • B60T13/142—Systems with master cylinder
    • B60T13/143—Master cylinder mechanically coupled with booster
    • B60T13/144—Pilot valve provided inside booster piston

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

L'invention concerne une unité de freinage assisté pour véhicules automobiles. Cette unité comprend une soupape de frein permettant le dosage de fluide d'une source d'énergie extérieure 14 vers une chambre d'amplification 12. Ce fluide agit sur un dispositif de pistons amplificateurs comprenant un premier et un second piston d'amplification 4, 5. Ce dernier est maintenu en position de fonctionnement par la pression dans une chambre 22 et devient inactif en cas de défaillance de la source. Dans ce cas la force sur la pédale de frein est transmise directement par le piston 4 et un piston intermédiaire 15 au piston du maître-cylindre. L'invention s'applique aux systèmes de freinage assisté hydrauliques pour véhicules automobiles.
FR7913562A 1978-06-03 1979-05-29 Unite de freinage assiste pour vehicules automobiles Granted FR2427234A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782824458 DE2824458A1 (de) 1978-06-03 1978-06-03 Bremsgeraet fuer kraftfahrzeuge

Publications (2)

Publication Number Publication Date
FR2427234A1 true FR2427234A1 (fr) 1979-12-28
FR2427234B1 FR2427234B1 (fr) 1984-02-24

Family

ID=6040976

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7913562A Granted FR2427234A1 (fr) 1978-06-03 1979-05-29 Unite de freinage assiste pour vehicules automobiles

Country Status (4)

Country Link
US (1) US4263784A (fr)
DE (1) DE2824458A1 (fr)
FR (1) FR2427234A1 (fr)
GB (1) GB2022740B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3019568A1 (de) * 1980-05-22 1981-11-26 Alfred Teves Gmbh, 6000 Frankfurt Bremsgeraet
DE3040602A1 (de) * 1980-10-29 1982-05-27 Alfred Teves Gmbh, 6000 Frankfurt Bremsgeraet fuer kraftfahrzeuge
DE3045814A1 (de) * 1980-12-05 1982-07-08 Alfred Teves Gmbh, 6000 Frankfurt Zweikreis-hauptbremszylinder
JPS60199757A (ja) * 1984-03-22 1985-10-09 Aisin Seiki Co Ltd 車輌の液圧ブレ−キブ−スタ
DE3444829A1 (de) * 1984-12-08 1986-06-12 Robert Bosch Gmbh, 7000 Stuttgart Bremskraftverstaerker
CN110171407A (zh) * 2019-07-01 2019-08-27 广州中博制动系统有限公司 一种带预充功能的液压助力器总成装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327479A (en) * 1965-05-17 1967-06-27 Gen Motors Corp Low travel hydraulic booster with integral reservoir
FR2260478A1 (fr) * 1974-02-13 1975-09-05 Girling Ltd
DE2519836A1 (de) * 1975-05-03 1976-11-11 Teves Gmbh Alfred Bremsgeraet mit hauptzylinder und hilfskraftverstaerkung
FR2347242A1 (fr) * 1976-04-10 1977-11-04 Teves Gmbh Alfred Dispositif de frein a transmission hydraulique
FR2398647A1 (fr) * 1977-07-30 1979-02-23 Teves Gmbh Alfred Maitre-cylindre pour systeme de freinage hydraulique

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2945352A (en) * 1957-07-03 1960-07-19 Kelsey Hayes Co Fluid pressure booster system
US3334548A (en) * 1963-04-26 1967-08-08 Gen Motors Corp Vehicle brake system
US3298177A (en) * 1964-07-08 1967-01-17 Gen Motors Corp Hydraulic power brake booster having excess force dampening means
GB1445355A (en) * 1973-12-22 1976-08-11 Girling Ltd Master cylinders for breaking systems
DE2453573C2 (de) * 1974-11-12 1983-11-17 Alfred Teves Gmbh, 6000 Frankfurt Hydraulische Bremsbetätigungsvorrichtung mit Hilfskraftverstärkung
DE2461295A1 (de) * 1974-12-23 1976-07-01 Teves Gmbh Alfred Bremsgeraet fuer kraftfahrzeuge
US4181064A (en) * 1978-04-05 1980-01-01 General Motors Corporation Hydraulic brake booster

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327479A (en) * 1965-05-17 1967-06-27 Gen Motors Corp Low travel hydraulic booster with integral reservoir
FR2260478A1 (fr) * 1974-02-13 1975-09-05 Girling Ltd
DE2519836A1 (de) * 1975-05-03 1976-11-11 Teves Gmbh Alfred Bremsgeraet mit hauptzylinder und hilfskraftverstaerkung
FR2347242A1 (fr) * 1976-04-10 1977-11-04 Teves Gmbh Alfred Dispositif de frein a transmission hydraulique
FR2398647A1 (fr) * 1977-07-30 1979-02-23 Teves Gmbh Alfred Maitre-cylindre pour systeme de freinage hydraulique

Also Published As

Publication number Publication date
GB2022740B (en) 1982-06-09
DE2824458A1 (de) 1979-12-06
DE2824458C2 (fr) 1990-06-21
US4263784A (en) 1981-04-28
GB2022740A (en) 1979-12-19
FR2427234B1 (fr) 1984-02-24

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Legal Events

Date Code Title Description
ST Notification of lapse